THE SA'AR to halt for the day, but the need was to press on. The Badawin, ever mindful of the welfare of their camels, were ill at ease in these drought-stricken wastes and anxious to press on with all speed to some expected pastures in southern Mazariq. The menace of raiders had diminished as we marched north and was now left behind. True, the Sa'ar had in times past raided as far north as this, but to-day, with the main body of Rashid behind us in the south, a raiding party would come into contact with them there, or, in any case, would not be so foolish as to push thus far and expose itself to the risk of being cut off. Sa'ar! The name is a word of terror to the Rashid and the southern Murra, whose boys are brought up to live to revenge brothers and fathers, and to redeem lost fortunes. The cause of raids and inter-tribal feuds is at bottom economic. Men kill and are killed in the fight for camels. Peace, or rather truce, alternates with war for periods of a year or two. In time of war it is the greatest shame for a young man to show no disposition to fight, sharab al khumr, Vine-filled/ is a synonym for gallantry applied to the young man who sets out to kill or be killed with a gay heart, but a stay-at-home who shelters his life or makes excuses when the communal interests of his tribe are involved, is regarded as a white-livered craven for whom none will have respect, and to whom none will give a daughter in marriage. Young Kilthut, Shaikh Salih's son, told me the story of his 'blooding' by the Sa'ar which is worth setting down, not merely as a true version of what happens when enemies meet in the Rub' al Khali, but for the light it throws on desert psychology.